Die Sturmey-Archer ASC Fixed Gear Drei-Gang-Nabe/Wartung der Sturmey-Archer ASC Fixed Gear Drei-Gang-Nabe

SunRace/Sturmey-Archer hatte zwischenzeitlich eine neuere Fixed-Gear Drei-Gang-Nabe - die S3X - auf den Markt gebracht. Wenn man sich die Fortschritte von Sunrace mit Sturmey-Archger produkten ansieht, kann man erwarten, dass die neuere Nabe zuverlässiger funktioniert als das Original.

Auf dieser Seite kümmern wir uns allerdings um die Wartung der früheren Sturmey-Archer Fixed-Fear-Nabe.

CODE Nr.	Beschreibung	CODE Nr.	Beschreibung
K831	Axle, 5 1/2" long	K228	R H. Ball Ring
K805A	Low Gear Dog	K230Z	Ball Cage with 3/16" balls
K806	Dog Sleeve	K462	Driver, 3-Lug
K402	Low Gear Key	K657	Driver, 12-Spline
K809A	Secondary Sun Pinion	K67Z	Ball Cage with 8 1/4" balls
K811	Locating Plate	LB405	Outer Dust Cap
K 412	Locking Washer	K506Z	Axle Cone with Dust Cap
K812	Locknut	K516	R.H. Cone Locking Washer
K8l5A	Secondary Planet Cage	K718Z	Shell, 40 holes, with Ball Cup
K816A	Secondary Planet Pinion	K7l8AZ	Shell, 36 holes, with Ball Cup
K8l0B	Low Gear Spring	K227	Connection Locknut
K808	Primary Sun Pinion	X42A	Axle Spacing Washer
K715	Planet Cage	K47A	Cone Locknut
K16	Planet Pinion	K521	Axle Locking Washer
N24	Pinion Pin	N190	L.H. Axle Nut
K716	Indicator	N200	R.H. Axle Nut
X8	Collar for Compensator Spring	K229	Sprocket Dust Cap
K8l3B	Compensator Spring	K464	Sprocket, 14 teeth, 3-Lug
K527	Clutch Sleeve	K465	Sprocket, 15 teeth, 3-Lug
K505A	Sliding Clutch	K466	Sprocket, 16 teeth, 3-Lug
K526A	Axle Key	K467	Sprocket, 17 teeth, 3-Lug
K807ZA	Coupling complete	K468	Sprocket, 18 teeth, 3-Lug
K807Z	Coupling complete, quick-release type. Not illustrated	K469	Sprocket, 19 teeth, 3-Lug
K74OAZ	Quick Release Connection. Not illustrated	K470	Sprocket, 20 teeth, 3-Lug
K528A	Thrust Ring	X49	Sprocket Spacing Washer
K411	Thrust Washer	K463	Circlip
K530B	Clutch Spring	K214	Sprocket, 14 teeth, 12-Spline
K529	Spring Cap	K215	Sprocket, 15 teeth, 12-Spline
K511B	Gear Ring	K216	Sprocket, 16 teeth, 12-Spline
	K217	Sprocket, 17 teeth, 12-Spline
	K218	Sprocket, 18 teeth, 12-Spline
	K219	Sprocket, 19 teeth, 12-Spline
	K220	Sprocket, 20 teeth, 12-Spline
	K36	Sprocket Lock Ring

Zusammenbau einer ASC Nabe

Proceed as follows:

1. Prepare the following preliminary sub-assemblies:
   • Fit the ball cage into the left-hand ball cup, with the ring of the ball-retainer facing outwards and the recess in the dust cap also facing outwards. If a new ball-retainer is being fitted, the dust cap also should be new.
   • Fit the ball cage into the driver, with the ring of the ball- retainer facing outwards and the recess in the dust cap also facing outwards. If a new ball-retainer is being fitted the dust cap also should be new. If the sprocket has been removed see No. 27 below.
   • Smear grease in the channels of the dust cap of the left-hand ball cup and the driver and in the recess of the right-hand ball ring. Do not use grease anywhere else.
2. Hold the axle in a vise, with the smaller slot uppermost, and fit the low-gear clutch sleeve with its flange on top.
3. Slip the small low-gear key through the holes of the low-gear clutch sleeve, making sure that the hole through the key is in line with the bore of the axle. Hold the key temporarily in position by dropping the indicator rod down the axle through the key.
4. Holding the indicator rod in position with one finger, remove the axle from the vise and hold it the other way up. Fit the low-gear clutch on to the axle, with the four dogs pointing downwards.
5. Fit the large low-gear spring and the primary sun pinion, with its four large legs pointing downwards and so engaging the low-gear clutch. (The low-gear spring, the compensating spring, and the clutch spring must be of the same series. If one has to be replaced, the other two must be.)
6. Slip the indicator rod out of the axle (the low-gear clutch key will now stay in position) and put the axle back in the vise.
7. Fit the primary planet cage complete.
8. Drop the compensating spring down the axle, collar first.
9. Fit the clutch sleeve (flange first) and the sliding clutch with the recess over the flange of the sleeve.
10. Lift the clutch sleeve and the clutch up to the top of the long axle slot and insert axle key through the clutch sleeve, making sure That the two flats on The key are facing upwards.
11. Fit the indicator coupling by passing the rod down the axle through the axle key and onto the compensator spring. Note that the indicator coupling must always be fitted before the indicator rod.
12. Remove the axle from the vise and push the indicator rod into the left-hand end of the axle. Press the assembled mechanism down on a flat surface to force the indicator rod into the axle, at the same time pressing down on the sliding clutch. Then rotate the indicator chain to screw it to the indicator rod. When the chain is felt to be fully screwed home insert a small screwdriver into the slot of the indicator rod and exert a slight extra pressure on the chain, to make sure that the indicator and the rod are both fully screwed together, taking care not to twist off the small threaded end.
13. Fix the axle in thc vise again and make sure that the clutch slides quite freely on the axle when the indicator chain is moved up and down.
14. Fit the thrust collar, making sure that both slots fit over the flats of the axle key. Add the thrust washer.
15. Fit the gear ring, the ball ring (with ball cage), the driver, the axle spring and the clutch spring cap in that order.
16. Fit the right-hand cone and screw it up finger tight. Then slacken it back half a turn and lock it in that position with the special washer and locknut. On no account must the cone be unscrewed more than half a turn, as that would throw the gear mechanism out of adjustment.
17. Remove the assembled mechanism from the vise and replace it the other way up.
18. Fit the secondary planet cage, with the pins upwards and the slots engaging the limbs of the low-gear dog.
19. Fit the secondary planet pinion.
20. Fit the secondary sun pinion, with the recess downwards so that the sun pinion engages with the square flats on the axle.
21. Fit the locating plate and tab washer and tighten the locknut. Turn over the edge of the washer on two opposite sides of the locknut.
22. Remove the assembled mechanism from the vise, hold it vertically with the planet cage uppermost and pour about two teaspoonfuls of a good quality thin oil into the cage.
23. Insert the assembled mechanism into the hub shell and screw up the right-hand ball ring finger-tight only.
24. Make sure that the marks put on the ball ring and the hub flange before dismantling will register properly, and then screw up tightly.
25. Fit the left-hand cone, washer and locknut in the arrangement noted when dismantling, and adjust the hub as described in The Fitting and Adjustment of Sturmey-Archer Hubs.
26. Fit any special washers noted when dismantling the hub.
27. If the sprocket has been removed from the driver, fit the outer dust cap over the driver before replacing the sprocket, and see that the dust cap is properly centered on the flange of the driver. Replace the sprocket and the spacing washers in the arrangement noted when dismantling, and add the circlip.
28. Replace the wheel in the cycle frame and adjust the gear as described in The Fitting and Adjustment of Sturmey-Archer Hubs.

Quelle

Dieser Artikel basiert auf dem Artikel Servicing The Sturmey-Archer ASC Three-Speed Fixed-Gear Hub von der Website Sheldon Browns. Originalautor des Artikels ist Sheldon Brown.

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